Previous Year Very Short Questions of PHY (DIPLOMA electronics and communication engineering 1st-2nd)

Physics

Previous year question paper with solutions for Physics

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  1. SI unit of temperature is __________
  2. Newton’s ____________law is called law of inertia
  3. Time period is ____________of frequency
  4. In cold welding ______________wave are used
  5. When earth revolves around sun, its ______________remains constant
  6. Focal length of a plane mirror is ____________.
  7. The unit of electric charge is ____________.
  8. A ____________ is a non conducting material which separates the plates of a capacitor.
  9. The conductors which obey ohm’s law are called ____________.
  10. 1 Tesla = ____________ Gauses.
  11. Energy and power have ___________________ dimensions.
  12. It is impossible to go around a curved path _________ acceleration.
  13. Radius of gyration have the unit of __________.
  14. Bulk modulus of a perfect rigid body is ___________.
  15. In convection the heat is transferred by ____________ of particles.
  16. The significant figures in 0.07805 is (a) 3 (b) 4 (c) 5 (d) 6
  17. The minimum resultant of two forces of 4N and 3N is (a) 7N (b) 3N (c) 4N (d) 1N
  18. A force of 10N on a body moves it with a velocity 5m/s. Power will be (a) 2 watt (b) 25 watt (c) 50 watt (d) 500 watt
  19. Pressure is defined as force per unit (a) Length (b) volume (c) mass (d) area
  20. Mercury thermometer can be used to measure temperature up to (a) 100°c (b) 212°c (c) 500°c (d) 360°c
  21. Magnification produced by a plane mirror is: (a) +1 (b) +2 (c) +1/2 (d) -1
  22. The law that governs the force between electric charges is called: (a) Ampere’s Law (b) Coulomb’s Law (c) Faraday’s Law (d) Ohm’s Law
  23. A Ruby Laser is a: (a) Two level laser (b) three level laser (c) four level laser (d) five level laser
  24. The CGS unit of magnetic field B is: (a)Tesla (b) gauss (c) TmA2 (d) Am2
  25. Slide wire bridge is an application of: (a) Wheatstone bridge (b) Potentiometer (c) Kirchoff's law (d) None of these
  26. The torque on a body is zero which of the following should not change (a) Linear velocity (b) Angular velocity (c) Force (d) None of these
  27. How many significant figures are there in 40.00? (a) 1 (b) 2 (c) 3 (d) 4
  28. Ruby Laser is a: a) Two level laser b) three level laser c) four level laser d) five level laser
  29. Conductance is the reciprocal of a) Current b) Current density c) Resistance d) Resistivity
  30. SI unit of current is a) ohm b) coulomb c) ampere d) eV